CVE-2021-23484

Arbitrary File Write via Archive Extraction (Zip Slip)

Critical 路 published January 28, 2022

CVSS v3.1
9.8
EPSS
2%
Percentile
81.1
In the wild
Unconfirmed
What it is

馃毃 A sneaky flaw in zip-local can let attackers extract files wherever they please! 馃帲 Think of it like a delivery person who misreads the address on a package and drops it off in the wrong neighborhood entirely. Instead of landing safely in the designated spot, it could end up anywhere on your system, including sensitive areas you never intended to expose! This vulnerability, known as Zip Slip, could allow an attacker to write files outside the intended directories, potentially compromising your entire system. Imagine the chaos as unauthorized files land right where they shouldn鈥檛 be, leading to data breaches or even complete system compromise. Absolutely devastating! 馃敟

Put simply

Think of it like a delivery person who misreads the address on a package and drops it off in the wrong neighborhood entirely. Instead of landing safely in the designated spot, it could end up anywhere on your system, including sensitive areas you never intended to expose! The zip-local package before version 0.3.5 is vulnerable to an Arbitrary File Write due to improper handling of file paths during extraction. This flaw can be exploited to extract crafted files into unintended locations.

What to do

This vulnerability, known as Zip Slip, could allow an attacker to write files outside the intended directories, potentially compromising your entire system. Imagine the chaos as unauthorized files land right where they shouldn鈥檛 be, leading to data breaches or even complete system compromise. Absolutely devastating! 馃敟 Upgrade to zip-local version 0.3.5 or later immediately! 馃挕 Additionally, review your application to ensure no other components allow for similar path traversal vulnerabilities. A swift action here can save you from future headaches! You've got this! By taking these steps, you're not just fixing a flaw; you're becoming a hero in the fight for safer software! 馃Ω

The record
Technical detail
CVSS v3.1
9.8 路 CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02050 路 81.1th percentile
Published
2022-01-28T21:31Z
EPSS history
Timeline
  • 28 JAN 21:31Z
    Arbitrary File Write via Archive Extraction (Zip Slip)
    cvelistv5